The Rainbow is a local home cooking restaurant in North Carolina. I really love their very simple potato salad, and the waitress let me know the ingredients. I tested it out a few times to get it just right. I am giving approximate measures, because I truthfully measure this recipe "by feel" and "to taste" so please adjust the dressing amounts to your taste buds. Prep time does not include chilling time, so plan ahead, as this needs several hours of chilling before serving.